Corrigendum to “Toughness and ductility improvement of heavy EH47 plate with grain refinement through inter-pass cooling” [Mater. Sci. Eng. A 733 (2018) 117–127]

Wu, Jian; Wang, B.; Wang, B.X.; Misra, R.D.K.; Wang, Z.D.

doi:10.1016/j.msea.2018.12.010

Cited by 5 publications

(5 citation statements)

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“…[8] Wu et al applied interpass cooling technology during rough rolling (R-IPC) to process a 60 mm-thickness steel plate with excellent toughness and ductility. [9] In addition, reheat-quenching and tempering after the hot rolling process were also conducted for ultraheavy steel plates to improve the mechanical properties. [10,11] The above industrial and academic efforts have improved the performance of ultraheavy steel, but they cannot fundamentally solve the genetic problems of segregation and defects in ingots, or the thickness is also limited.…”

Section: Introductionmentioning

confidence: 99%

Superior Through‐Thickness Homogeneity of Microstructure and Mechanical Properties of Ultraheavy Steel Plate by Advanced Casting and Quenching Technologies

Wang

et al. 2021

steel research int.

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Keeping through‐thickness homogeneity of mechanical properties has been a great challenge for producing heavy gauge steel plates. Herein, a superior homogeneity of microstructure and hence strength and toughness achieved in a quenched and tempered (QT) 210 mm‐thickness steel plate produced by advanced electroslag remelting casting and roller quenching (ESR–RQ) technologies are reported. Some comparisons are made with a QT 178 mm steel plate produced by conventional mold casting and immersion quenching in the water tank (MC‐IQ). The martensite of the as‐quenched ESR–RQ steel is distributed homogeneously across the thickness with a fraction of 39% at the 1/2 thickness, remarkable higher 34% than that of MC‐IQ steel. ESR–RQ steel appears excellent comprehensive mechanical properties even for the as‐quenched samples, as well as QT samples. Comparing with the MC‐IQ steel, the Charpy impact energy at −60 °C is 150 J (278%) higher for the samples tempered at 650 °C, and the yield strength is 137 MPa (18%) higher for the samples tempered at 600 °C than those of MC‐IQ steel, respectively. The considerable improvement can be attributed to homogeneous through‐thickness microstructures, including refined prior austenite grains, effective grain size, and carbide precipitates.

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Section: Introductionmentioning

confidence: 99%

Superior Through‐Thickness Homogeneity of Microstructure and Mechanical Properties of Ultraheavy Steel Plate by Advanced Casting and Quenching Technologies

Wang

et al. 2021

steel research int.

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“…The acicular ferrite fractions at 1/2-thickness of the IPC and TMCP steels are 50% and 9.5%, respectively. The granular bainite width at 1/2-thickness of the IPC steel was 14 ± 4 μm, which is significantly lower than the TMCP steel (27 ± 10 μm), 31) as shown in Fig. 17.…”

Section: Development and Application Of Rolling With Interpass Coolinmentioning

confidence: 86%

Development and Application of Thermo-mechanical Control Process Involving Ultra-fast Cooling Technology in China

Wang

et al. 2019

ISIJ Int.

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Thermo-mechanical control process (TMCP) is an important and effective rolling technology for microstructural control to obtain excellent mechanical properties, such as high strength, excellent toughness and other performances, which consists of controlled hot rolling and controlled cooling. RAL laboratory in China has been making efforts to develop ultra-fast cooling (UFC) technology, which is referred as the core technology for New Generation (NG)-TMCP. The ongoing development of UFC technology, with high cooling capacity and uniform cooling control, provides the effective control of cooling paths for a wide range of water-cooled steel strips and plates. Here, the development and characterization of UFC technology are introduced, and advanced cooling system (ADCOS) for the UFC equipment will be elucidated as well. Moreover, the superior mechanical properties can be obtained by inter-pass cooling technology during rolling processing, which is characterized by water-cooling between controlled rolling passes and further reheating due to the internal heat capacity of plate on its own. The resultant theory and technology can achieve resource conservation, energy saving and emission reduction for green products in the manufacturing process for upgrading of steel industry in China. KEY WORDS: thermo-mechanical control process (TMCP); ultra-fast cooling (UFC); advanced cooling system (ADCOS); strip and plate; inter-pass cooling. 2. Research and Development of Ultra-fast Cooling Technology and Equipment 2.1. Historical Review of Ultra-fast Cooling for Steel Strips and Plates Since the end of the last century, CRM, the top steel research institution in Europe, had carried out in-depth studies in ultra-fast cooling process and developed the ultra-fast cooling system for hot-rolled steel strips and

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“…[5,6] In general, for HSLA steels, the lowtemperature toughness is upgraded via adjusting the matrix structure, such as refining the grain, regulating precipitation, [7] controlling crystallographic texture, [8] or optimizing the grain boundary character, [9] so as to improve the low-temperature toughness. For example, Wu et al [10] successfully optimized the microstructure type and texture proportion of ultraheavy EH47 steel plate at 1/2 thickness utilizing inter-pass cooling technology, resulting in a significant improvement in its low-temperature impact toughness. El-Fallah et al [11] reported that bainite transformation can be promoted by increasing NiAl precipitates, thus improving toughness without sacrificing the strength.…”

Section: Introductionmentioning

confidence: 99%

The Low‐Temperature Toughness Improvement of High‐Strength Low‐Alloy Steel Due to the Microstructural Changes Caused by the Reheating/Rolling Temperature

Liu,

Zhao,

Tian

et al. 2024

steel research int.

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Herein, the microstructure, low‐temperature toughness, and fracture characteristics of high‐strength low‐alloy (HSLA) steel prepared by various thermomechanical control processes are systematically studied. Three different reheating/rolling temperatures are designed to obtain microstructures with different prior austenite grain sizes: 20.12 μm (S810), 27.58 μm (S910), and 35.19 μm (S1010). After hot rolling, S810 steel with smaller prior austenite grain size can provide high‐density deformed grain boundaries that promote ferrite phase transformation. The S910 and S1010 steels predominantly undergo bainite transformation as the prior austenite grain size and rolling temperature increase. Also, excellent low‐temperature toughness is obtained by reducing the reheating/rolling temperature (i.e., S810 steel), reflecting that Charpy impact energy of the core of the steel plate is 118.53 J at −120 °C. High performances is mainly attributed to the higher ferrite content, grain refinement, lower dislocation density, and higher proportion of high‐angle grain boundaries. Furthermore, fracture morphology analysis demonstrates that the S810 steel exhibits ductile fracture and noticeable plastic deformation at −120 °C, while S910 and S1010 steels exhibit brittle fracture and rapid crack propagation. These findings manifest the applicability of the suggested technique in preparing HSLA steel with excellent low‐temperature toughness.

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Corrigendum to “Toughness and ductility improvement of heavy EH47 plate with grain refinement through inter-pass cooling” [Mater. Sci. Eng. A 733 (2018) 117–127]

Cited by 5 publications

References 0 publications

Superior Through‐Thickness Homogeneity of Microstructure and Mechanical Properties of Ultraheavy Steel Plate by Advanced Casting and Quenching Technologies

Superior Through‐Thickness Homogeneity of Microstructure and Mechanical Properties of Ultraheavy Steel Plate by Advanced Casting and Quenching Technologies

Development and Application of Thermo-mechanical Control Process Involving Ultra-fast Cooling Technology in China

The Low‐Temperature Toughness Improvement of High‐Strength Low‐Alloy Steel Due to the Microstructural Changes Caused by the Reheating/Rolling Temperature

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